/**
* Associate the extended persistence context with the current JTA transaction (if one is found)
*
* <p>this method is private to the JPA subsystem
*/
public void internalAssociateWithJtaTx() {
isInTx = TransactionUtil.isInTx();
// ensure that a different XPC (with same name) is not already present in the TX
if (isInTx) {
// 7.6.3.1 throw EJBException if a different persistence context is already joined to the
// transaction (with the same puScopedName).
EntityManager existing = TransactionUtil.getTransactionScopedEntityManager(puScopedName);
if (existing != null && existing != this) {
// should be enough to test if not the same object
throw JpaLogger.ROOT_LOGGER.cannotUseExtendedPersistenceTransaction(
puScopedName, existing, this);
} else if (existing == null) {
if (SynchronizationType.SYNCHRONIZED.equals(synchronizationType)) {
// JPA 7.9.1 join the transaction if not already done for
// SynchronizationType.SYNCHRONIZED.
underlyingEntityManager.joinTransaction();
}
// associate the entity manager with the current transaction
TransactionUtil.putEntityManagerInTransactionRegistry(puScopedName, this);
}
}
}
